From patchwork Fri Oct 25 09:01:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Longfang Liu X-Patchwork-Id: 13850239 Received: from szxga06-in.huawei.com (szxga06-in.huawei.com [45.249.212.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BAAC01D4174; Fri, 25 Oct 2024 09:02:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.32 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729846934; cv=none; b=Aqu7InmFaqodeiyottnPui9glq2ZOgd1sJtnbrrQeEEhEWA8b2QxUgpAyoVKp/69BxSS0zq6dujfAQlxVcu3Vrr0MWzXpOTLT3qQeVssg5xeVKv4as1MqwUnKvBTA/D2nX27jxPXUnyZ5Jn7Shdc+n70A1nb4OQyWxfhhjEDqbQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729846934; c=relaxed/simple; bh=C3N5KTavk+0RtE3KZcseOqfqmSYOwFhe0h+9n4uui7M=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=rI8cwA/tnViA0q1We0d3qQF7Tz/PABl4FWASATMBBZnE6Jj8SxavxqQpLMJonAXW3CKC4ya/B1Zn8GcqfjTvS7+v+Mi3/Mq5n2POn3sIiFz+AS7iulktzNdJrVcsvqoTe+SQ72BMyoRPeiIC5iy3BjS+MldzlCCEyKbsbCGpfI4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.88.214]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4XZcHC0c6hz1ynHg; Fri, 25 Oct 2024 17:02:15 +0800 (CST) Received: from kwepemm600005.china.huawei.com (unknown [7.193.23.191]) by mail.maildlp.com (Postfix) with ESMTPS id 68D131A0171; Fri, 25 Oct 2024 17:02:07 +0800 (CST) Received: from huawei.com (10.50.165.33) by kwepemm600005.china.huawei.com (7.193.23.191) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 25 Oct 2024 17:02:06 +0800 From: Longfang Liu To: , , , CC: , , , Subject: [PATCH v11 0/4] debugfs to hisilicon migration driver Date: Fri, 25 Oct 2024 17:01:39 +0800 Message-ID: <20241025090143.64472-1-liulongfang@huawei.com> X-Mailer: git-send-email 2.24.0 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To kwepemm600005.china.huawei.com (7.193.23.191) Add a debugfs function to the hisilicon migration driver in VFIO to provide intermediate state values and data during device migration. When the execution of live migration fails, the user can view the status and data during the migration process separately from the source and the destination, which is convenient for users to analyze and locate problems. Changes v10 -> v11 Update conditions for debugfs registration Changes v9 -> v10 Optimize symmetry processing of mutex Changes v8 -> v9 Added device enable mutex Changes v7 -> v8 Delete unnecessary information Changes v6 -> v7 Remove redundant kernel error log printing and remove unrelated bugfix code Changes v5 -> v6 Modify log output calling error Changes v4 -> v5 Adjust the descriptioniptionbugfs file directory Changes v3 -> v4 Rebased on kernel6.9 Changes 2 -> v3 Solve debugfs serialization problem. Changes v1 -> v2 Solve the racy problem of io_base. Longfang Liu (4): hisi_acc_vfio_pci: extract public functions for container_of hisi_acc_vfio_pci: create subfunction for data reading hisi_acc_vfio_pci: register debugfs for hisilicon migration driver Documentation: add debugfs description for hisi migration .../ABI/testing/debugfs-hisi-migration | 25 ++ .../vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 279 ++++++++++++++++-- .../vfio/pci/hisilicon/hisi_acc_vfio_pci.h | 7 + 3 files changed, 280 insertions(+), 31 deletions(-) create mode 100644 Documentation/ABI/testing/debugfs-hisi-migration